History of Barcelona in Timeline

By Popular Timelines Editorial Team · Updated: July 12, 2026

Barcelona, the vibrant capital of Catalonia, Spain, is globally renowned for its unique blend of history, architecture, and Mediterranean culture. The city is most famous for its distinctive Modernist architecture, prominently featuring the works of Antoni Gaudí, such as the Sagrada Família, Park Güell, and Casa Batlló. Situated along the northeastern coast, it offers a distinct climate, famous urban beaches, and the bustling La Rambla promenade. Barcelona is also a major economic and cultural hub, hosting a world-class culinary scene and serving as the home to FC Barcelona, one of the most successful and supported soccer clubs in history. With its rich Gothic Quarter, thriving arts scene, and status as a cosmopolitan center, Barcelona attracts millions of visitors annually, blending ancient Roman origins with cutting-edge urban design.

1900: Demographic Profile of Barcelona in 1900

In 1900, the demographic landscape of Barcelona was characterized by a young population, where children younger than 14 years old accounted for 28.9 percent of the total, while elderly residents aged 65 and older made up only 6.5 percent of the population.

1900: Barcelona Population Baseline

In 1900, the population of Barcelona was recorded at 533,000 residents, marking a period of slow and steady growth for the city.

1931: Barcelona Becomes Capital of Autonomous Catalonia

In 1931, following a period of industrial growth and labor movements, Barcelona was established as the capital of the newly autonomous region of Catalonia.

1936: Spanish Revolution in Barcelona

During the Spanish Revolution of 1936, the city of Barcelona served as the central hub and epicenter for the revolutionary activities occurring throughout Catalonia.

November 1937: Barcelona Becomes Capital of the Second Spanish Republic

In November 1937, Barcelona officially became the capital of the Second Spanish Republic during a period in which it was one of the final regions in Spain to remain under anti-Francoist control.

March 1938: The Bombing of Barcelona

Between 16 and 18 March 1938, Barcelona suffered a series of devastating airstrikes conducted by Fascist Italy and Nazi Germany to support the Francoist army. These attacks in March 1938 resulted in at least 1,300 deaths and 2,000 injuries, causing significant destruction to both industrial facilities and civilian residential areas in a tactical attempt to demoralize republican forces.

January 1939: The Fall of Barcelona

On 26 January 1939, Barcelona fell to Nationalist forces during the Spanish Civil War, triggering a mass exodus of civilians toward the French border and leading to the suppression of Catalan institutions and language by the Franco regime.

1939: Capture of Barcelona by Fascist Forces

The revolutionary period in Barcelona came to an end in 1939 when the city was captured by fascist forces.

1950: Migration Surge

Starting in 1950, Barcelona experienced a significant influx of people arriving from less-industrialized regions across Spain.

1975: Death of Francisco Franco

In 1975, the death of dictator Francisco Franco marked the end of the Francoist period in Spain, leading to significant political changes and the eventual restoration of autonomy to regions like Barcelona.

September 1977: Demonstrations for Catalan Autonomy

On 11 September 1977, over a million people gathered in the streets of Barcelona for a massive peaceful demonstration demanding the restoration of Catalan autonomy, which was subsequently granted less than a month later.

1979: Population Peak

Barcelona reached its historic population peak of 1,906,998 residents in 1979, after which the numbers began to decline over the following two decades.

1979: Restoration of Municipal Elections

Following the adoption of the Spanish Constitution, municipal elections were officially held again in 1979, ending the era where mayors were appointed by the central government.

1986: Urban Development Boost

In 1986, the city of Barcelona experienced significant development due to Spain joining the European Community and the official selection of the city as the host for the 1992 Summer Olympics.

1987: Hipercor bombing

In 1987, the separatist group ETA carried out a deadly car bombing at the Hipercor supermarket in Barcelona, which tragically resulted in the deaths of 21 people.

1990: Beginning of Hotel Capacity Expansion

Starting in 1990, Barcelona began a period of rapid tourism infrastructure development, initiating a trend that would see the number of hotel rooms in the city double by 2004.

1992: Barcelona Hosts the Summer Olympics

Barcelona gained international recognition in 1992 by serving as the official host city for the 1992 Summer Olympics.

1992: 1992 Summer Olympics

Barcelona served as the official host city for the 1992 Summer Olympics, a milestone event that catalyzed the city's urban regeneration and international tourism reputation throughout 1992.

1996: Barcelona Foreign-Born Population 1996

In 1996, the demographic data for Barcelona indicated that only 3.9% of the city's inhabitants were born outside of Spain.

2000: Population Minimum and Resurgence

The city's population reached a low point in 2000 with 1,496,266 residents, after which it began to rise again as younger demographics returned to the area.

2001: Population Growth Reversal

Beginning in 2001, the long-term decline in Barcelona's population was reversed due to a fresh wave of immigration, primarily involving individuals from Morocco and Latin America.

2001: Barcelona Foreign-Born Population 2001

By the year 2001, the proportion of residents born outside of Spain had grown, reaching approximately half of the level recorded in 2016.

2004: Barcelona GDP per Capita Milestone

According to data from Eurostat in 2004, the city of Barcelona recorded a high GDP of €80,894 per head.

2004: Completion of Hotel Expansion Cycle

By the year 2004, the cycle of rapid growth in Barcelona's hospitality sector concluded, resulting in a doubling of the total number of hotel rooms available in the city since 1990.

2007: Roman Catholic Demographic Majority

In 2007, the majority of the inhabitants of Barcelona identified as Roman Catholic, with the city housing 208 churches.

2008: Barcelona Population Calculation

In 2008, the Barcelona city council conducted a population study revealing that 1,621,090 people resided within the 102.2 square kilometer municipality, resulting in an average density of 15,926 inhabitants per square kilometer, with the Eixample district identified as the most densely populated area.

2009: Barcelona Economic Standing and Growth

In 2009, the greater Barcelona metropolitan area achieved a GDP of $177 billion, ranking as the 4th most economically powerful city in the European Union and 35th globally. Additionally, in 2009, Barcelona was recognized as Europe's fourth best business city and the fastest improving, with an annual growth rate of 17%.

2011: InfoCatólica Religious Affiliation Survey

A 2011 survey conducted by InfoCatólica revealed that 49.5% of Barcelona residents identified as Catholic, marking the first time in the city that more than half of the respondents did not identify as Catholic Christians.

2012: Barcelona Global Tourism Ranking

As of 2012, Barcelona reached a new milestone in international appeal, being recognized as the 12th most popular city destination worldwide and the 5th most popular in Europe due to long-term urban improvements.

2013: Linguistic Census of Barcelona

In 2013, the Government of Catalonia conducted a linguistic census in Barcelona, which revealed that while Catalan remains the primary institutional language, Spanish is the most spoken language among the city's population.

2014: Muslim Population Statistics in Barcelona Province

In 2014, the province of Barcelona recorded a population of 322,698 individuals identifying as Muslim, which accounted for approximately 5.6% of the province's 5.5 million total inhabitants.

2016: Barcelona Demographic Composition 2016

In 2016, the population of Barcelona was comprised of 59% residents born in Catalonia, 18.5% from other parts of Spain, and 22.5% born outside of Spain.

October 2017: Catalan Independence Referendum and Police Intervention

In October 2017, the Catalan Government held an independence referendum in Barcelona despite it being declared unconstitutional by the Spanish Constitutional Court. The subsequent attempt by the Spanish Civil Guard and National Police to dismantle voting centers resulted in significant unrest and violence, leaving at least 1,066 people injured and drawing international condemnation from NGOs for the excessive use of force.

2017: Demographic Shift in Barcelona by 2017

By 2017, the population structure of Barcelona had shifted significantly, with children under 14 dropping to 12.7 percent, while the elderly population aged 65 and older increased to 21.5 percent. Additionally, in 2017, residents aged 15-24 comprised 9 percent, those 25-44 made up 30.6 percent, and those 45-64 formed 56.9 percent of the city's inhabitants.

2017: Spanish constitutional crisis begins

In 2017, a referendum in Catalonia triggered a major constitutional crisis within Spain, leading to significant political instability and subsequent public demonstrations.

2017: Barcelona Terrorist Attack and Aftermath

On August 17, 2017, a terrorist attack occurred in the Rambla district of Barcelona when a van deliberately drove into pedestrians, resulting in 13 deaths and over 130 injuries. Following the incident, the perpetrator fled and committed a carjacking, leading to an extensive police operation. In the subsequent days, massive public demonstrations occurred throughout the city featuring the rallying cry "No tinc por" to show solidarity against the violence.

2018: Continued protests following constitutional crisis

Throughout 2018, the repercussions of the 2017 referendum continued as citizens engaged in various protests linked to the ongoing Spanish constitutional crisis.

2019: Centro de Investigaciones Sociológicas Religious Survey

In 2019, a survey by the Centro de Investigaciones Sociológicas indicated that 53.2% of Barcelona residents identified as Catholic, which included 9.9% who were practicing and 43.3% who were non-practicing.

July 2023: Barcelona Named UNESCO-UIA World Capital of Architecture

In July 2023, Barcelona was officially designated as the UNESCO-UIA World Capital of Architecture for the 2024–2026 term, positioning the city as a central hub for global discussions on urban planning, culture, and architecture.

2024: Start of World Capital of Architecture Term

Beginning in 2024, Barcelona initiated its term as the UNESCO-UIA World Capital of Architecture, marking the start of a multi-year period focused on highlighting the city's architectural legacy and addressing global urban challenges.

2024: Demographic statistics of Barcelona

In 2024, the city of Barcelona recorded a population of 1,686,208 residents occupying a land area of 101.4 square kilometers, serving as the core of a larger metropolitan area with a total population reaching 5,474,482.

2026: Hosting the UIA World Congress of Architects

As the culmination of its term as the World Capital of Architecture, Barcelona is scheduled to host the UIA World Congress of Architects in 2026, serving as a focal point for international architectural discourse.